EP1000196B1 - Multi-layer screen for the wet area of a paper machine and product manufactured using the same - Google Patents
Multi-layer screen for the wet area of a paper machine and product manufactured using the same Download PDFInfo
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- EP1000196B1 EP1000196B1 EP98943749A EP98943749A EP1000196B1 EP 1000196 B1 EP1000196 B1 EP 1000196B1 EP 98943749 A EP98943749 A EP 98943749A EP 98943749 A EP98943749 A EP 98943749A EP 1000196 B1 EP1000196 B1 EP 1000196B1
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/0027—Screen-cloths
- D21F1/0036—Multi-layer screen-cloths
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
- D21F11/006—Making patterned paper
Definitions
- the invention relates to a multi-layer screen for the Wet area of a paper machine, in particular for tissue production, with at least two of threads, preferably interwoven threads made by layers with the layers intertwined additional threads are connected and a product made with it.
- the network-like Structure achieved by varying the basis weight, whereby High areas and low areas Basis weight in the macroscopic range alternate.
- the basis weight variation is achieved by varying the drainage capacity of the sieve.
- a variation in the openness of the sieve can also be achieved through the Combine different weaving patterns. It can Basic fabric of the structure-forming sieve, one or more layers, but preferably be two layers. As related to the U.S. Patent 5,219,004 has already been mentioned, it is already known, the layers together by additional threads connect.
- the object of the invention is a multilayer to create a structuring sieve of the type mentioned at the beginning, which makes it easy to produce a improved product the aforementioned modified Adjust drainage properties, and to create such a product.
- This object is achieved in that the additional threads together with the threads forming the layers distributed over the width and length of the sieve Constriction points or zones form due to the significantly less water can drain than through the neighboring zones.
- the additional threads forming constrictions z. B. in Machine direction run and at predetermined places the top of the screen or the layer located there appear and these as narrowing points in Grouping or stringing together in different Directions form constriction areas that pattern over the Area of the sieve appear. These places form in the paper or macroscopic areas in tissue paper Basis weight, d. H. Structures with a lower Deposition of fibers than in the neighboring areas, whereby the elongation behavior in the longitudinal and transverse directions, but particularly advantageously in the transverse direction being affected.
- constriction points to form Length sections at an angle to the machine direction of the screen are lined up, so it is transverse to the machine direction achieved greater flexibility, in addition to Flexibility in the machine direction that the flexibility through Crepe still improved.
- the lengths also alternately in opposite Directions.
- the lengths can but also within the same orientations be arranged in groups running parallel.
- constriction points can be arranged so that closed or at least partially open, but also form continuous courses.
- the arrangement of the Narrowing points should be such that discontinuous courses alone or together with continuous courses available.
- a product according to the present invention is defined in claim 13. Advantageous embodiments of this product can be found in subclaims 14 to 23.
- a paper product made with such a sieve, especially silk or tissue paper, has considerable improved properties especially with regard to so-called haptics or softness. It results in a positive influence on dry and wet strength as well as a positive effect on the crepe process, the drying, the Pressing and drainage.
- the double-layer sieve is designed as a fabric, namely with an upper fabric 10 and a lower fabric 11. Die The machine direction of the sieve is indicated by the arrow A characterized.
- the threads 12a of the upper fabric paper touched side depending on the selected Weaving process designed as warp threads, but also as weft threads be, but preferably as warp threads. same for correspondingly vice versa for the threads 12b of the upper fabric. In in the same way this applies accordingly to the threads 13a or 13b of the lower fabric.
- additional threads 14 run as connecting threads 14 in the same direction and in parallel to the threads 12a such that, as shown in Fig. 1b, the additional threads 14 between the threads 13b and Threads 13c of the lower fabric 11 run and on the from Fig. 1st visible places close stitches 15 by joining them there the top of the upper fabric 10 appear and above Threads 12c of the upper fabric run.
- additional threads 14 constrictions or zones 16 in Machine direction. Oblique to machine direction A strung together, these constrictions 16 result in Longitudinal sections formed constriction areas 17. Rein two in one direction are exemplary parallel constriction areas 17 and 18 are provided. Alternating such constriction areas are in z. B.
- FIGS. 2 to 5 show a structure with different designs.
- Fig. 2 shows a product with a Sieve structure according to FIG. 1 was generated. Thereby form the the areas marked in dark the aforementioned network-like structure. This creates a coherent Zone of high basis weight formed. The same applies 3, 4 and 5.
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Description
Die Erfindung bezieht sich auf ein mehrlagiges Sieb für den Naßbereich einer Papiermaschine, insbesondere für die Tissue-Herstellung, mit zumindest zwei aus Fäden, vorzugsweise verwobenen Fäden hergestellten Lagen, die durch mit den Lagen verflochtene zusätzliche Fäden miteinander verbunden sind und ein damit hergestelltes Produkt.The invention relates to a multi-layer screen for the Wet area of a paper machine, in particular for tissue production, with at least two of threads, preferably interwoven threads made by layers with the layers intertwined additional threads are connected and a product made with it.
Ein derartiges mehrlagiges Sieb ist aus der US-PS 5 219 004 bekannt.Such a multilayer sieve is known from US Pat. No. 5,219,004 known.
Bei der Herstellung von Papier und insbesondere Tissue-Papier ist es bekannt, im Naßbereich durch gezielte selektive Entwässerung durch das Sieb über bestimmte Bereiche durch differenzierte Ablagerung der Fasern abwechselnd ein hohes und ein niedriges Flächengewicht vorzusehen. An Stellen, wo das Sieb durchlässiger ist für das abfließende Wasser, d. h. in den sogenannten offenen Zonen, lagern sich mehr Fasern ab als in den sogenannten geschlossenen Zonen. Üblicherweise werden die geschlossenen und offenen Zonen dadurch gebildet, daß Schuß- und/oder Kettfäden des das Sieb bildenden Gewebes in unterschiedlicher Beabstandung zueinander angeordnet werden, wobei nach der Maschinenrichtung und nach der dazu senkrechten Querrichtung unterschieden wird. In the manufacture of paper and especially tissue paper it is known in the wet area through targeted selective Drainage through the sieve through certain areas differentiated deposition of the fibers alternately high and to provide a low basis weight. In places where the sieve is more permeable to the draining water, d. H. in the so-called open zones, more fibers are deposited than in the so-called closed zones. Usually the closed and open zones are formed by that weft and / or warp threads of the fabric forming the sieve arranged at different distances from each other be, according to the machine direction and according to this vertical transverse direction is distinguished.
Dadurch ist es möglich, Papier, z. B. Seiden- oder auch Tissue-Papier, mit einer netzwerkähnlichen Struktur zu erzeugen, in dem die normalerweise flächige, homogene, gegen äußere Kräfte normalerweise unflexible Struktur des getrockneten Seiden- oder Tissue-Papiers durch die bei der Blattbildung im makroskopischen Bereich erzeugten Flächengewichtsunterschiede in eine flächige, inhomogene, netzwerkähnliche Struktur überführt wird, die bei Beanspruchung durch äußere Kräfte flexibel reagiert. Dabei ist Papier ebenso wie konventionelles Seiden- oder Tissue-Papier ein flächiges Gebilde, bei dem die einzelnen Fasern fest in dessen Gefüge verankert sind. Aufgrund der Einbindung der Fasern in das Gefüge ergibt sich bei makroskopisch homogenem Flächengewicht eine unflexible, steife Struktur. Im ungekreppten Zustand hat Seiden- oder Tissue-Papier sehr niedrige Dehnungswerte, im Bereich <= 6 %. Durch den üblicherweise bei der Herstellung von Tissue-Papier vorgenommenen Kreppvorgang wird das Tissue-Papier gegenüber der Beanspruchung durch äußere Kräfte flexibler, jedoch überwiegend in Maschinenrichtung. Die bei homogener Papierstruktur durch Kreppung erzielbare höhere Flexibilität in Maschinenrichtung äußert sich in einem erhöhten Arbeitsvermögen mit der Folge größerer Dehnbarkeit in Maschinenrichtung.This makes it possible to use paper, e.g. B. silk or Tissue paper, with a network-like structure too generate in which the usually flat, homogeneous, against external forces normally inflexible structure of the dried silk or tissue paper through the at the Sheet formation in the macroscopic area generated Basis weight differences in a flat, inhomogeneous, network-like structure is transferred, which at Stress from external forces reacts flexibly. there is paper just like conventional silk or tissue paper a flat structure in which the individual fibers are firmly anchored in its structure. Because of the integration the fibers in the structure are macroscopic homogeneous basis weight an inflexible, rigid structure. in the uncreped condition has very much silk or tissue paper low elongation values, in the range <= 6%. By the usually in the manufacture of tissue paper The creping process performed is compared to the tissue paper the exposure to external forces is more flexible, however predominantly in the machine direction. The at homogeneous Paper structure achieved by crepe higher flexibility in the machine direction manifests itself in an increased Work capacity with the consequence of greater elasticity in Machine direction.
Durch Überführung der flächigen, homogenen Struktur in netzwerkartige, flächige, inhomogene Struktur kann die Flexibilität des Papiers und damit auch eines Seiden- oder Tissue-Papiers zusätzlich verbessert werden, wobei diese Verbesserung nicht auf die Maschinenlaufrichtung beschränkt ist, sondern auch in Maschinenquerrichtung erzielt werden kann.By converting the flat, homogeneous structure into network-like, flat, inhomogeneous structure can Flexibility of the paper and thus also of a silk or Tissue paper can also be improved, this Improvement not limited to machine direction but can also be achieved in the cross machine direction can.
Wie bereits ausgeführt wurde, wird die netzwerkähnliche Struktur durch Variation des Flächengewichtes erreicht, wobei Bereiche hohen Flächengewicbtes und Bereiche niedrigen Flächengewichtes im makroskopischen Bereich einander abwechseln. Die Variation des Flächengewichtes wird erreicht durch Variation der Entwässerungsfähigkeit des Siebes. Dort, wo sich entsprechend den vorstehenden Ausführungen viele Fasern ablagern, spricht man von einer Zone hohen Flächengewichtes. Dort, wo sich wenige Fasern ablagern, spricht man von einer Zone niedrigen Flächengewichts.As already stated, the network-like Structure achieved by varying the basis weight, whereby High areas and low areas Basis weight in the macroscopic range alternate. The basis weight variation is achieved by varying the drainage capacity of the sieve. There, where there are many according to the above Deposition of fibers is called a zone high Basis weight. Where few fibers are deposited, one speaks of a zone of low basis weight.
Aufgrund örtlich verschiedener Entwässerungsleistung des Siebes gibt es zusätzlich parallel zur Sieboberfläche partielle Strömungen, wodurch die Fasern mehr oder weniger stark ausgerichtet werden, ähnlich wie bei der Erzeugung von echten Wasserzeichen.Due to the different drainage capacity of the Sieves are also parallel to the sieve surface partial flows, causing the fibers more or less strongly aligned, similar to the generation of real watermark.
Es ist bekannt, Zonen unterschiedlicher Entwässerungsleistung durch Siebverengungen zu erreichen, indem Zonen im Sieb durch Kunststoff-Kleber bzw. Farbe etc. verschlossen werden (z. B. WO 93/00474).It is known to have zones of different drainage performance to achieve through sieve constrictions by passing through zones in the sieve Plastic glue or paint etc. are sealed (e.g. WO 93/00474).
Eine Variation der Offenheit des Siebes kann auch durch die Kombination verschiedener Webmuster erfolgen. Dabei kann das Basisgewebe des strukturbildenden Siebes ein- oder mehrlagig, bevorzugt aber zweilagig sein. Wie im Zusammenhang mit der US-PS 5 219 004 bereits erwähnt wurde, ist es bereits bekannt, die Lagen durch zusätzliche Fäden miteinander zu verbinden.A variation in the openness of the sieve can also be achieved through the Combine different weaving patterns. It can Basic fabric of the structure-forming sieve, one or more layers, but preferably be two layers. As related to the U.S. Patent 5,219,004 has already been mentioned, it is already known, the layers together by additional threads connect.
Es ist Aufgabe der Erfindung, ein mehrlagiges strukturgebendes Sieb der eingangs genannten Art zu schaffen, welches auf einfache Weise ermöglicht, zur Herstellung eines verbesserten Produktes die genannten modifizierten Entwässerungseigenschaften einzustellen, und ein solches Produkt zu schaffen.The object of the invention is a multilayer to create a structuring sieve of the type mentioned at the beginning, which makes it easy to produce a improved product the aforementioned modified Adjust drainage properties, and to create such a product.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die zusätzlichen Fäden zusammen mit den die Lagen bildenden Fäden über die Breite und die Länge des Siebes verteilte Verengungsstellen oder-zonen bilden, durch die deutlich weniger Wasser abfließen kann als durch die benachbarten zonen. This object is achieved in that the additional threads together with the threads forming the layers distributed over the width and length of the sieve Constriction points or zones form due to the significantly less water can drain than through the neighboring zones.
Diese Lösung kennzeichnet sich dadurch aus, daß die für das Verbinden der Lagen des Siebes verwendeten zusätzlichen Fäden genutzt werden, die geschlossenen Zonen bzw. im wesentlichen geschlossenen Zonen des Siebes zu bilden, wobei die im wesentlichen offenen Zonen in den Bereichen des Siebes gebildet sind, wo die zusätzlichen Fäden die Maschen im Basisgewebe nicht verschließen. Somit erzielt man mit den zusätzlichen Fäden eine Doppelfunktion. Mit einem solchen Sieb läßt sich ein wesentlich verbessertes Papierprodukt, insbesondere Seiden- oder Tissue-Papier herstellen.This solution is characterized by the fact that for the Joining the layers of the screen used additional threads be used, the closed zones or essentially to form closed zones of the sieve, the im essential open zones in the areas of the sieve are formed where the additional threads stitch in Do not close the base fabric. So you get with the additional threads a double function. With one Sieve can be a much improved paper product especially make silk or tissue paper.
In vorteilhafter Weiterbildung dieser Lösung können die zusätzlichen Fäden Verengungsstellen bildend z. B. in Maschinenrichtung verlaufen und an vorbestimmten Stellen an der Oberseite des Siebes bzw. der dort befindlichen Lage erscheinen und diese als Verengungsstellen in Aneinandergruppierung oder Aneinanderreihung in verschiedenen Richtungen Verengungsbereiche bilden, die als Muster über die Fläche des Siebes erscheinen. Diese Stellen bilden im Papier bzw. im Tissue-Papier makroskopische Bereiche niedrigen Flächengewichtes, d. h. Strukturen mit einer niedrigeren Ablagerung von Fasern als in den benachbarten Bereichen, wodurch das Dehnungsverhalten in Längs- und Querrichtung, insbesondere aber in Querrichtung vorteilhafterweise beeinflußt wird. Das bedingt sich dadurch, daß mit bestimmter Ausrichtung die Flächenanteile geringen Flächengewichtes zu einer Schwächung im Vergleich mit einer homogenen Struktur führen, wodurch die angesprochene erhöhte Flexibilität der inhomogenen gegenüber der homogenen Struktur erreicht wird. Die auf vorgenannte Weise erzielbaren, nach einer vorgebbaren Struktur im Fasernetzwerk eines Papiers, insbesondere eines Seiden- oder Tissue-Papiers, anordenbaren Flächengewichtsunterschiede führen demnach zu einer, insbesondere für Tissue-Papiere wünschenswerten, Erhöhung des Arbeitsaufnahmevermögens in Längs- und Querrichtung. In an advantageous development of this solution, the additional threads forming constrictions z. B. in Machine direction run and at predetermined places the top of the screen or the layer located there appear and these as narrowing points in Grouping or stringing together in different Directions form constriction areas that pattern over the Area of the sieve appear. These places form in the paper or macroscopic areas in tissue paper Basis weight, d. H. Structures with a lower Deposition of fibers than in the neighboring areas, whereby the elongation behavior in the longitudinal and transverse directions, but particularly advantageously in the transverse direction being affected. This is due to the fact that with certain Alignment of the areas with a low basis weight a weakening compared to a homogeneous structure lead, which increases the increased flexibility of is achieved inhomogeneous compared to the homogeneous structure. The achievable in the aforementioned manner, according to a predefinable one Structure in the fiber network of a paper, especially one Silk or tissue paper, customizable Differences in basis weight therefore lead to a desirable for tissue papers in particular, increasing the Longitudinal and transverse job absorption capacity.
Wenn beispielsweise die Verengungsstellen zur Bildung von Längenabschnitten schräg zur Maschinenrichtung des Siebes aneinandergereiht sind, so wird quer zur Maschinenrichtung eine größere Flexibilität erreicht, und zwar in Ergänzung zur Flexibilität in Maschinenrichtung, die die Flexibilität durch Kreppen noch verbessert.For example, if the constriction points to form Length sections at an angle to the machine direction of the screen are lined up, so it is transverse to the machine direction achieved greater flexibility, in addition to Flexibility in the machine direction that the flexibility through Crepe still improved.
Im gleichen Sinne können die Verengungsstellen zur Bildung von Längenabschnitten auch teilweise senkrecht zur Maschinenrichtung und teilweise in Maschinenrichtung aneinandergereiht sein.In the same sense, the narrowing points for education of lengths also partially perpendicular to Machine direction and partly in machine direction strung together.
Hinsichtlich einer weiteren Ausgestaltungsmöglichkeit können die Längenabschnitte auch abwechselnd in entgegengesetzten Richtungen ausgerichtet sein. Die Längenabschnitte können aber auch innerhalb der gleich ausgerichteten Ausrichtungen gruppenweise parallel verlaufend angeordnet sein.With regard to a further design option the lengths also alternately in opposite Directions. The lengths can but also within the same orientations be arranged in groups running parallel.
Entsprechend einer weiteren Ausgestaltung können die Verengungsstellen zur Bildung von Zickzack- oder gewellten Verläufen aneinandergereiht sein.According to a further embodiment, the Narrowing points to form zigzag or wavy Be lined up.
Die Verengungsstellen können so angeordnet sein, daß sich geschlossene oder zumindest teilweise offene, aber auch kontinuierliche Verläufe bilden. Auch kann die Anordnung der Verengungsstellen so sein, daß diskontinuierliche Verläufe alleine oder zusammen mit kontinuierlichen Verläufen vorhanden sind.The constriction points can be arranged so that closed or at least partially open, but also form continuous courses. The arrangement of the Narrowing points should be such that discontinuous courses alone or together with continuous courses available.
Ein Produkt gemäß der Vorliegenden Erfindung ist in Anspruch 13 definiert. Vorteilhafte Ausgestaltungen dieses Produkts sind den Unteransprüchen 14 bis 23 zu entrehnen.A product according to the present invention is defined in claim 13. Advantageous embodiments of this product can be found in
Ein mit einem derartigen Sieb hergestelltes Papierprodukt, insbesondere Seiden- oder Tissue-Papier, hat erheblich verbesserte Eigenschaften insbesondere hinsichtlich der sogenannten Haptik bzw. Weichheit. Es ergibt sich ein positiver Einfluß auf Trocken- und Naßfestigkeit sowie eine positive Rückwirkung auf den Kreppvorgang, die Trocknung, das Pressen und die Entwässerung. A paper product made with such a sieve, especially silk or tissue paper, has considerable improved properties especially with regard to so-called haptics or softness. It results in a positive influence on dry and wet strength as well as a positive effect on the crepe process, the drying, the Pressing and drainage.
Die Erfindung wird nachfolgend anhand der in den Zeichnungen rein schematisch dargestellten Ausführungsbeispiele näher erläutert. Es zeigen:
- Fig. 1
- eine Draufsicht auf ein erfindungsgemäßes mehrlagiges Sieb;
- Fig. 1a
- eine Schnittansicht durch das Sieb gemäß Fig. 1 entlang der Schnittlinie a-a;
- Fig. 1b
- eine Schnittansicht durch das Sieb gemäß Fig. 1 entlang der Schnittlinie b-b;
- Fig. 2 bis 5
- Draufsichten auf verschiedene Strukturmuster von Tissue-Papieren, hergestellt mit mehrlagigen Sieben ähnlich denen der Fig. 1;
- Fig. 6 bis 12
- schematische Darstellungen weiterer mehrlagiger Siebe mit unterschiedlicher Gestaltung der Lagenanordnung von zusätzlichen Fäden als Verbindungsfäden;
- Fig. 13a
- ein herkömmliches flächiges, homogenes Tissue-Papier vor und nach Aufbringen einer Streckkraft (Pfeile); und
- Fig. 13b
- ein erfindungsgemäßes flächiges, inhomogenes, netzwerkähnliches Tissue-Papier, ebenfalls vor und nach Aufbringen einer Streckkraft (Pfeile).
- Fig. 1
- a plan view of a multi-layer sieve according to the invention;
- Fig. 1a
- a sectional view through the screen of Figure 1 along the section line aa.
- Fig. 1b
- a sectional view through the screen of Figure 1 along the section line bb.
- 2 to 5
- Top views of different structural patterns of tissue papers, made with multi-layer sieves similar to those of Fig. 1;
- 6 to 12
- schematic representations of further multi-layer screens with different designs of the layer arrangement of additional threads as connecting threads;
- 13a
- a conventional flat, homogeneous tissue paper before and after applying a stretching force (arrows); and
- Fig. 13b
- a flat, inhomogeneous, network-like tissue paper according to the invention, also before and after applying a stretching force (arrows).
Das doppellagige Sieb ist als Gewebe ausgebildet, und zwar
mit einem Obergewebe 10 und einem Untergewebe 11. Die
Maschinenrichtung des Siebs ist durch den Pfeil A
gekennzeichnet. Hierbei können die Fäden 12a des Obergewebes
(papierberührte Seite) in Abhängigkeit vom gewählten
Webprozeß als Kettfäden, aber auch als Schußfäden ausgebildet
sein, bevorzugt aber als Kettfäden. Gleiches gilt
entsprechend umgekehrt für die Fäden 12b des Obergewebes. In
gleicher Weise gilt dies entsprechend für die Fäden 13a bzw.
13b des Untergewebes.The double-layer sieve is designed as a fabric, namely
with an
In diesem Ausführungsbeispiel verlaufen zusätzliche Fäden 14
als Verbindungsfäden 14 in der gleichen Richtung und parallel
zu den Fäden 12a derart, daß entsprechend der Darstellung in
Fig. 1b die zusätzlichen Fäden 14 zwischen den Fäden 13b und
Fäden 13c des Untergewebes 11 verlaufen und an den aus Fig. 1
ersichtlichen Stellen Maschen 15 schließen, indem sie dort an
der Oberseite des Obergewebes 10 erscheinen und oberhalb von
Fäden 12c des Obergewebes verlaufen. Dort bilden die
zusätzlichen Fäden 14 Verengungsstellen oder-zonen 16 in
Maschinenlaufrichtung. Schräg zur Maschinenrichtung A
aneinandergereiht ergeben diese Verengungsstellen 16 als
Längenabschnitte ausgebildete Verengungsbereiche 17. Rein
beispielhaft sind jeweils in einer Richtung verlaufend zwei
parallele Verengungsbereiche 17 und 18 vorgesehen.
Abwechselnd sind solche Verengungsbereiche in z. B.
zueinander senkrecht verlaufenden Richtungen über die
Sieboberfläche vorgesehen, so daß ein Muster von
Verengungsbereichen gebildet wird. Diese Verengungsbereiche
bilden die bereits erwähnten Zonen niedrigen Flächengewichtes
beim auf diesem Sieb hergestellten Seiden- oder Tissue-Papier,
um diesem die gewünschte flächige, inhomogene,
netzwerkähnliche Struktur hoher Flexibilität bei
Beanspruchung zu geben. Eine derartige Struktur mit
verschiedenen Gestaltungen ist den Figuren 2 bis 5 zu
entnehmen. Fig. 2 zeigt ein Produkt, das mit einer
Siebstruktur gemäß Fig. 1 erzeugt wurde. Dabei bilden die
dunkel gekennzeichneten Flächenanteile die vorerwähnte
netzwerkähnliche Struktur. Dadurch wird eine zusammenhängende
Zone hohen Flächengewichtes gebildet. Das gleiche gilt für
das Produkt gemäß Fig. 3, 4 und 5. Für die Produkte gemäß
Fig. 2, 3, 4 und 5 können die dunkel dargestellten
Flächenanteile, die hohes Flächengewicht bedeuten, auch
solche mit geringem Flächengewicht sein und die hell
dargestellten Flächenanteile, die geringes Flächengewicht
bedeuten, entsprechend auch solche mit hohem Flächengewicht
sein (siehe am Beispiel der Fig. 2a, 3a). Dann bilden die
hell dargestellten Flächenanteile die vorerwähnte
netzwerkähnliche Struktur.In this exemplary embodiment,
Weitere Abwandlungen der Siebstruktur sind schematisch den Figuren 6 bis 8 zu entnehmen. Bei einem Produkt, das mit einer Siebstruktur gemäß Fig. 7 oder 8 hergestellt wurde, bilden die Flächenanteile geringen Flächengewichtes die vorerwähnte netzwerkähnliche Struktur.Further modifications of the sieve structure are schematically the Figures 6 to 8 can be seen. For a product that comes with a sieve structure according to FIG. 7 or 8 was produced, form the area percentages of low basis weight aforementioned network-like structure.
Wie Fig. 13a beim herkömmlichen Tissue-Papier verdeutlicht, ist nahezu keine Längenänderung des Tissue-Papiers beim Aufbringen einer Streckkraft feststellbar, wohl aber bei dem Tissue-Papier gemäß Fig. 13b.As shown in FIG. 13a in the case of conventional tissue paper, there is almost no change in the length of the tissue paper Application of a stretching force is noticeable, but with the Tissue paper according to Fig. 13b.
Claims (23)
- Multi-layered screen for the wet area of a paper machine, made of threads, preferably woven threads with at least two layers (10, 11) which are connected to one another by additional threads (14) woven into the layers (10, 11), characterised in that the additional threads (14) together with the threads (12a, 12b, 12c; 13a, 13b, 13c) forming the layers (10, 11) form narrowing zones (16) distributed over the width and the length of the screen, through which appreciably less water can flow out than through adjacent zones.
- Multi-layered screen according to Claim 1, characterised in that the additional threads (14) forming narrowing zones (16) run in the machine direction (A) and appear at predetermined places on the top side of the screen (10) or in the layer located there and these as narrowing zones in grouping together or lining up together form narrowing regions (17, 18) in different directions, which appear as a pattern over the surface of the screen
- Multi-layered screen according to Claim 1 or 2, characterised in that the narrowing zones (16) are lined up together obliquely to the machine direction (A) to form longitudinal sections (17, 18).
- Multi-layered screen according to Claim 1 or 2, characterised in that the narrowing zones (16) are lined up together partially vertically to the machine direction (A) and partially in the machine direction to form longitudinal sections (17, 18).
- Multi-layered screen according to Claim 3 or 4, characterised in that the longitudinal sections (17, 18) are orientated alternately in opposite directions.
- Multi-layered screen according to Claim 3 or 4, characterised in that the longitudinal sections (17, 18) are arranged inside the orientations orientated the same in groups running parallel.
- Multi-layered screen according to at least one of Claims 1 to 3, characterised in that the narrowing zones (16) are lined up together to form zig-zag or wavy courses.
- Multi-layered screen according to Claim 1 or 2, characterised in that the narrowing zones (16) are arranged in such a way that closed courses are formed.
- Multi-layered screen according to Claim 1 or 2, characterised in that the narrowing zones are arranged in such a way that open courses are partially formed.
- Multi-layered screen according to Claim 1 or 2, characterised in that the narrowing zones are arranged in such a way that discontinuous courses are formed.
- Multi-layered screen according to Claim 1 or 2, characterised in that the narrowing zones are arranged in such a way that discontinuous courses are formed.
- Multi-layered screen according to Claim 1 or 2, characterised in that the narrowing zones are arranged in such a way that continuous and discontinuous courses are formed.
- Paper product, in particular tissue product, with macroscopic regions of lower and macroscopic regions of higher weight per unit area, characterised in that special regions of lower weigth per unit area are arranged between regions of higher weight per unit area or special regions of higher weight per unit area are arranged between regions of lower weight per unit area grouped together or lined up together in various directions and appear as a pattern over the surface of the product.
- Paper product according to Claim 13, characterised in that the special regions for forming the longitudinal sections are lined up obliquely to the machine direction.
- Paper product according to Claim 13, characterised in that the special regions for forming longitudinal sections are lined up together partially vertically to the machine direction (A) and partially in the machine direction.
- Paper product according to Claim 15, characterised in that the longitudinal sections are orientated alternatively in opposite directions.
- Paper product according to Claim 15, characterised in that that the longitudinal sections within the identically aligned orientations are arranged in groups running parallel.
- Paper product according to Claim 13, characterised in that the special regions are arranged lined up together to form zigzag or wavy courses.
- Paper product according to Claim 13, characterised in that the special regions are arranged in such a way that closed courses are formed.
- Paper product according to Claim 13, characterised in that the special regions are arranged in such a way that partially open courses are formed.
- Paper product according to Claim 13, characterised in that the special regions are arranged in such a way that continuous courses are formed.
- Paper product according to Claim 13, characterised in that the special regions are arranged in such a way that discontinuous courses are formed.
- Paper product according to Claim 13, characterised in that the special regions are arranged in such a way that discontinuous and continuous courses are formed.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732879A DE19732879C2 (en) | 1997-07-30 | 1997-07-30 | Multi-layer screen for the wet area of a paper machine and the product made with it |
| DE19732879 | 1997-07-30 | ||
| PCT/EP1998/004536 WO1999006629A1 (en) | 1997-07-30 | 1998-07-21 | Multi-layer screen for the wet area of a paper machine and product manufactured using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1000196A1 EP1000196A1 (en) | 2000-05-17 |
| EP1000196B1 true EP1000196B1 (en) | 2001-11-21 |
Family
ID=7837409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98943749A Expired - Lifetime EP1000196B1 (en) | 1997-07-30 | 1998-07-21 | Multi-layer screen for the wet area of a paper machine and product manufactured using the same |
Country Status (18)
| Country | Link |
|---|---|
| EP (1) | EP1000196B1 (en) |
| JP (1) | JP2001512192A (en) |
| KR (1) | KR20010022426A (en) |
| CN (1) | CN1272155A (en) |
| AR (1) | AR013263A1 (en) |
| AT (1) | ATE209270T1 (en) |
| BR (1) | BR9811566A (en) |
| CA (1) | CA2297800A1 (en) |
| CO (1) | CO5040193A1 (en) |
| CZ (1) | CZ2000296A3 (en) |
| DE (1) | DE19732879C2 (en) |
| ES (1) | ES2169546T3 (en) |
| HR (1) | HRP20000043A2 (en) |
| HU (1) | HUP0004860A2 (en) |
| PL (1) | PL187485B1 (en) |
| SK (1) | SK1122000A3 (en) |
| TR (1) | TR200000277T2 (en) |
| WO (1) | WO1999006629A1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10003685A1 (en) * | 2000-01-28 | 2001-08-02 | Voith Paper Patent Gmbh | Tissue paper web forming zone is a crescent assembly with an inner blanket and a suction/blower system where the blanket/fourdrinier separate and a cleaner clears the fourdrinier which has zones of different permeability |
| DE10003686A1 (en) * | 2000-01-28 | 2001-08-23 | Voith Paper Patent Gmbh | Machine and method for producing a tissue web |
| DE10003684A1 (en) * | 2000-01-28 | 2001-08-02 | Voith Paper Patent Gmbh | Machine and method for producing a tissue web |
| DE10145782A1 (en) | 2001-09-17 | 2003-04-10 | Giesecke & Devrient Gmbh | Paper screen for the production of two-stage watermarks and process for its production |
| DE102004035522A1 (en) | 2004-07-22 | 2006-03-16 | Voith Fabrics Patent Gmbh | Paper machine clothing |
| DE102005028254A1 (en) * | 2005-06-17 | 2006-12-21 | Voith Patent Gmbh | cloth tape |
| DE102010016323A1 (en) | 2010-04-04 | 2011-10-06 | Tim Frey | New reporter system, arrangements and procedures for video-sharing platforms |
| DE102010016324A1 (en) | 2010-04-05 | 2011-10-06 | Tim Frey | System, method and arrangements for securing resources |
| RU2659278C2 (en) * | 2014-04-02 | 2018-06-29 | Ска Хайджин Продактс Аб | Absorbing paper product and the method for manufacturing such absorption paper product |
| JP6243548B2 (en) * | 2015-03-30 | 2017-12-06 | 日本フイルコン株式会社 | Industrial two-layer fabric |
| JP7210787B1 (en) | 2022-01-11 | 2023-01-23 | 日本フイルコン株式会社 | industrial textiles |
| JP7210786B1 (en) | 2022-01-11 | 2023-01-23 | 日本フイルコン株式会社 | industrial textiles |
| JP7210785B1 (en) | 2022-01-11 | 2023-01-23 | 日本フイルコン株式会社 | industrial textiles |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3600530A1 (en) * | 1986-01-10 | 1987-07-16 | Wangner Gmbh Co Kg Hermann | USE OF A PAPER MACHINE TREATMENT FOR THE PRODUCTION OF TISSUE PAPER OR POROESE FLEECE AND THEREFORE SUITABLE PAPER MACHINE TENSIONING |
| US5245025A (en) * | 1991-06-28 | 1993-09-14 | The Procter & Gamble Company | Method and apparatus for making cellulosic fibrous structures by selectively obturated drainage and cellulosic fibrous structures produced thereby |
| US5219004A (en) * | 1992-02-06 | 1993-06-15 | Lindsay Wire, Inc. | Multi-ply papermaking fabric with binder warps |
-
1997
- 1997-07-30 DE DE19732879A patent/DE19732879C2/en not_active Expired - Fee Related
-
1998
- 1998-07-21 TR TR2000/00277T patent/TR200000277T2/en unknown
- 1998-07-21 EP EP98943749A patent/EP1000196B1/en not_active Expired - Lifetime
- 1998-07-21 AT AT98943749T patent/ATE209270T1/en not_active IP Right Cessation
- 1998-07-21 WO PCT/EP1998/004536 patent/WO1999006629A1/en not_active Application Discontinuation
- 1998-07-21 KR KR1020007001008A patent/KR20010022426A/en not_active Application Discontinuation
- 1998-07-21 PL PL98338418A patent/PL187485B1/en not_active IP Right Cessation
- 1998-07-21 CZ CZ2000296A patent/CZ2000296A3/en unknown
- 1998-07-21 BR BR9811566-9A patent/BR9811566A/en not_active IP Right Cessation
- 1998-07-21 CN CN98809595A patent/CN1272155A/en active Pending
- 1998-07-21 JP JP2000505364A patent/JP2001512192A/en active Pending
- 1998-07-21 SK SK112-2000A patent/SK1122000A3/en unknown
- 1998-07-21 HU HU0004860A patent/HUP0004860A2/en unknown
- 1998-07-21 ES ES98943749T patent/ES2169546T3/en not_active Expired - Lifetime
- 1998-07-21 CA CA002297800A patent/CA2297800A1/en not_active Abandoned
- 1998-07-29 AR ARP980103712A patent/AR013263A1/en unknown
- 1998-07-30 CO CO98043546A patent/CO5040193A1/en unknown
-
2000
- 2000-01-27 HR HR20000043A patent/HRP20000043A2/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| BR9811566A (en) | 2000-09-12 |
| AU730580B2 (en) | 2001-03-08 |
| WO1999006629A1 (en) | 1999-02-11 |
| KR20010022426A (en) | 2001-03-15 |
| PL187485B1 (en) | 2004-07-30 |
| EP1000196A1 (en) | 2000-05-17 |
| HUP0004860A2 (en) | 2001-06-28 |
| CZ2000296A3 (en) | 2001-09-12 |
| DE19732879C2 (en) | 1999-07-22 |
| TR200000277T2 (en) | 2001-03-21 |
| CA2297800A1 (en) | 1999-02-11 |
| CO5040193A1 (en) | 2001-05-29 |
| AU9154898A (en) | 1999-02-22 |
| PL338418A1 (en) | 2000-11-06 |
| DE19732879A1 (en) | 1999-02-04 |
| HRP20000043A2 (en) | 2001-06-30 |
| CN1272155A (en) | 2000-11-01 |
| SK1122000A3 (en) | 2000-08-14 |
| JP2001512192A (en) | 2001-08-21 |
| AR013263A1 (en) | 2000-12-13 |
| ES2169546T3 (en) | 2002-07-01 |
| ATE209270T1 (en) | 2001-12-15 |
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